diff --git a/lib/classes/sidebar/ResourceTreeWidget.class.php b/lib/classes/sidebar/ResourceTreeWidget.class.php
index 34907ce5e61ea9f40fe54c8b6bb3e092e74a288b..60d4b2925636a2d2211b00bc83d4e8728c6fe77c 100644
--- a/lib/classes/sidebar/ResourceTreeWidget.class.php
+++ b/lib/classes/sidebar/ResourceTreeWidget.class.php
@@ -76,6 +76,7 @@ class ResourceTreeWidget extends SidebarWidget
         }
 
         $this->parameter_name = $parameter_name;
+        $this->forced_rendering = true;
     }
 
     /**